confusion please help.

ok so i recently purchased my 04 factory and with it i gaind a pair of race exhuasts, now here is my dilema i know about the whole standard exhuast/race exhuast map 1/2 settings shizzle but after reading another thread about 02 sensors on here im now confused.

so being a giant **** i am going to be riding my rsv with the standard exhuasts for a few weeks first untill i get used to it being 19 i have only ever ridden an sv for 2 years and before that only moto x stuff.

i noticed today when starting her up to charge the battery (not able to ride it till monday due to 33bhp thingy) that on the rear exhaust manifold has a screw in bolt sorta configuration... like a lamba sensor sorta thing.

now is this something that has been removed as the previous owner has used the "race exhuast"? witch could possibly mean that the bike is already on "map 2". other post i have read sudgest that its OK but not good to ride the bike with aftermarket pipes but on map1 but it isnt god to run the bike with standard exhausts and on map 2...

get me? or am i being way over confused and reading too deep into this?

Reply's would be awesome. thanks Ollie c.

p.s. pictures of this sensor looking thing to follow.

sweet thanks spoonz, i thought that maybe the case, do you recon i could do any damage possibley riding the bike on map 2 with standard cans?